Recorded between October and December 1986, the album marked the consolidation of Dinosaur Jr.'s sound, blending distorted guitars with pop melodies. It was the first work with bassist Lou Barlow and drummer Murph after the departure of original bassist Charlie Nakajima.
The production, handled by the band along with Mark Freegard, aimed to capture the rawness of live performances. The record was released by SST Records in 1987, though initially with limited distribution. Over time, it became a landmark of alternative rock and noise rock.
The album influenced later generations of musicians, from Nirvana to Sonic Youth. Songs like 'Sludgefeast' and 'Little Fury Things' stand out for their sonic density and J Mascis's nasal vocals. The cover art, a collage of the band, reflects the underground aesthetic of the era.